MobileRead Forums - View Single Post - Tools Donwgrader 2.0 - simple KUAL addon to donwgrade your Kindle Firmware

icKEgAtE · 06-28-2022, 01:35 PM

Dear Arotkiv,

Thank you for your reply and for sharing your experiences. However, I'm still not able to figure out what I did wrong or what I should do now.

I used the following jailbreak method: https://www.mobileread.com/forums/sh...d.php?t=346037

1. I followed most of the steps under Setup. I factory reset my device to English (UK), entered the demo mode and rebooted the device. I entered the demo configuration menu and selected Sideload Content.

2. I followed the steps under Jailbreak. I created the folder .demo. I put KT4-5.14.2.zip from the watchthis-release in the .demo folder. I copied demo.json to .demo and created .demo/goodreads. I rebooted the device again (step 8). I went to settings and selected 'Help & User Guides > Get started'. The device rebooted.

3. I copied Update_hotfix_watchthis_custom.bin to the root of the Kindle storage and selected 'Update your Kindle'.

I used the following topics to install MRPI: https://www.mobileread.com/forums/sh...d.php?t=251143
https://www.mobileread.com/forums/sh...d.php?t=320564

4. I unpacked kual-mrinstaller-1.7.N-r18896.tar.xz to the root of the Kindle storage. There is an extensions folder (with an MRInstaller subfolder) and an mrpackages folder at the root of the Kindle storage.

I used the following topics to install KUAL Booklet (coplate): https://www.mobileread.com/forums/sh...d.php?t=203326
https://www.mobileread.com/forums/sh...d.php?t=320564

5. I copied Update_KUALBooklet_hotfix_e3deabf_install.bin to the root of the Kindle storage and installed it by selecting ‘Update your Kindle’. After rebooting, KUAL was available as a ‘book’. I did not copy Update_KUALBooklet_e3deabf_install.bin to mrpackages and I did not use ;log mrpi.

I used the following topic to downgrade with Downgrader 2.0:
https://www.mobileread.com/forums/sh...d.php?t=347165

6. I copied update_kindle_10th_5.13.5.bin to the root of the Kindle storage. I downloaded downgrader.zip and extracted the zip folder to the extensions folder.

7. I started KUAL, selected Downgrader and selected Kindle (10th Generation)/KT4.

8. Kindle rebooted, showed Person under Tree image and **** 5.12.X :( ****. After rebooting, the screen was blank.

9. I copied update_kindle_10th_5.12.4.bin to the root folder of the Kindle storage. Rebooted. Person under Tree image, text and blank screen again.

10. I copied update_kindle_10th_5.14.2.bin to the root folder of the Kindle storage. Rebooted. Kindle worked again.

11. KUAL didn’t work anymore, so I copied Update_hotfix_watchthis_custom.bin to the root of the Kindle storage and selected 'Update your Kindle'. This is the hotfix that came with the jailbreak. KUAL worked again.

Question 1: I installed the hotfix that came with the jailbreak (step 3). Is there any other hotfix that I need to install?

Question 2: Did I install KUAL correctly?

Question 3: Is it possible to downgrade the firmware from 5.14.X to 5.13.X?

Question 4: Where can I find /var/local/CHROME_CONFIG? I tried to follow the steps from this Reddit post: https://www.reddit.com/r/kindle/comm...sions_on_5142/.

:help: Thank you for your answers! :thanks:

06-28-2022, 01:35 PM	#13
icKEgAtE Junior Member Posts: 4 Karma: 22 Join Date: Jun 2022 Device: Kindle 10th Generation	Dear Arotkiv, Thank you for your reply and for sharing your experiences. However, I'm still not able to figure out what I did wrong or what I should do now. I used the following jailbreak method: https://www.mobileread.com/forums/sh...d.php?t=346037 1. I followed most of the steps under Setup. I factory reset my device to English (UK), entered the demo mode and rebooted the device. I entered the demo configuration menu and selected Sideload Content. 2. I followed the steps under Jailbreak. I created the folder .demo. I put KT4-5.14.2.zip from the watchthis-release in the .demo folder. I copied demo.json to .demo and created .demo/goodreads. I rebooted the device again (step 8). I went to settings and selected 'Help & User Guides > Get started'. The device rebooted. 3. I copied Update_hotfix_watchthis_custom.bin to the root of the Kindle storage and selected 'Update your Kindle'. I used the following topics to install MRPI: https://www.mobileread.com/forums/sh...d.php?t=251143 https://www.mobileread.com/forums/sh...d.php?t=320564 4. I unpacked kual-mrinstaller-1.7.N-r18896.tar.xz to the root of the Kindle storage. There is an extensions folder (with an MRInstaller subfolder) and an mrpackages folder at the root of the Kindle storage. I used the following topics to install KUAL Booklet (coplate): https://www.mobileread.com/forums/sh...d.php?t=203326 https://www.mobileread.com/forums/sh...d.php?t=320564 5. I copied Update_KUALBooklet_hotfix_e3deabf_install.bin to the root of the Kindle storage and installed it by selecting ‘Update your Kindle’. After rebooting, KUAL was available as a ‘book’. I did not copy Update_KUALBooklet_e3deabf_install.bin to mrpackages and I did not use ;log mrpi. I used the following topic to downgrade with Downgrader 2.0: https://www.mobileread.com/forums/sh...d.php?t=347165 6. I copied update_kindle_10th_5.13.5.bin to the root of the Kindle storage. I downloaded downgrader.zip and extracted the zip folder to the extensions folder. 7. I started KUAL, selected Downgrader and selected Kindle (10th Generation)/KT4. 8. Kindle rebooted, showed Person under Tree image and ** 5.12.X :( **. After rebooting, the screen was blank. 9. I copied update_kindle_10th_5.12.4.bin to the root folder of the Kindle storage. Rebooted. Person under Tree image, text and blank screen again. 10. I copied update_kindle_10th_5.14.2.bin to the root folder of the Kindle storage. Rebooted. Kindle worked again. 11. KUAL didn’t work anymore, so I copied Update_hotfix_watchthis_custom.bin to the root of the Kindle storage and selected 'Update your Kindle'. This is the hotfix that came with the jailbreak. KUAL worked again. Question 1: I installed the hotfix that came with the jailbreak (step 3). Is there any other hotfix that I need to install? Question 2: Did I install KUAL correctly? Question 3: Is it possible to downgrade the firmware from 5.14.X to 5.13.X? Question 4: Where can I find /var/local/CHROME_CONFIG? I tried to follow the steps from this Reddit post: https://www.reddit.com/r/kindle/comm...sions_on_5142/. :help: Thank you for your answers! :thanks: